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[MINOR] stream_sock: enable MSG_MORE when forwarding finite amount of data

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While it could be dangerous to enable MSG_MORE on infinite data (eg:
interactive sessions), it makes sense to enable it when we know the
chunk to be sent is just a part of a larger one.
This commit is contained in:
Willy Tarreau 2010-01-03 11:18:34 +01:00
parent 638cd02e9d
commit d38b53b896
1 changed files with 3 additions and 2 deletions
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5
src/stream_sock.c
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@ -603,6 +603,7 @@ static int stream_sock_write_loop(struct stream_interface *si, struct buffer *b)
* the ongoing FIN with the last segment.
* - we know we can't send everything at once and must get back
* here because of unaligned data
* - there is still a finite amount of data to forward
* The test is arranged so that the most common case does only 2
* tests.
*/
@ -611,8 +612,8 @@ static int stream_sock_write_loop(struct stream_interface *si, struct buffer *b)
unsigned int send_flag = MSG_DONTWAIT | MSG_NOSIGNAL;
if (MSG_MORE &&
(((b->flags & (BF_SHUTW|BF_SHUTW_NOW|BF_HIJACK)) == BF_SHUTW_NOW &&
(max == b->send_max)) ||
((b->to_forward && b->to_forward != BUF_INFINITE_FORWARD) ||
((b->flags & (BF_SHUTW|BF_SHUTW_NOW|BF_HIJACK)) == BF_SHUTW_NOW && (max == b->send_max)) ||
(max != b->l && max != b->send_max))
&& (fdtab[si->fd].flags & FD_FL_TCP)) {
send_flag |= MSG_MORE;